Improvement in railway splice and nut-lock



canard ,sam

and mit,

Letters Patent No. 105,357, lated lJuly 12, 1870.

` IMPROVEMENT IN RAILWAY SPLIC'E AND NUT-LOCK.

The Schedule referred to in these Letters Patent and making part of thesame.

To all whom it 'may concern:

Be it known that we, Jeux Mixen and Sims Mannion, of Newlrighton, in thecounty' ot' Beaver and State of Pennsylvania, have invented a new andvaluable Improvement in Fish-Plates for Railroads; and we do herebydeclare that the followinfblv is a. full, clear, and exact descriptionot' thc construction and operation otthc same, reference being` had tothe an-V is avcrtcal transverse section of the road rails from workingloose, and consists in rolling the fish-plate with a raised ledge or ribbelow the bolt-hole, and a depressed inclination above the saine,whereby the ordinary nut is readily and securely locked by thefish-plate itself'.

lhc letter A of the drawing` represents thc rail;

li, the screw-bolt;

G, `the nut; and

l), the locking fish-plate.

The raised portion of the fish-plate is shown at z. It is connected withthe face of the plate by an in clined plane, over which the corner of'the nut passes in turning. 'lhc rise of lthc plate commences at alittlcdistance from the lower edge of thc nut. \Vhen the nut is screwednp'closely, its position will be iuclincd in passing over the risc, and,in order to allow for this inclination, and to facilitate it as Inuch aspossible, the upper edge of the fish-plate is beveled from the edge ot'the bolt-hole at n.

-After the corner of the nut has been sprung over the rise ot' theplate, its under surface again cornes fully in cont-act with the face ofthe fish-plate, and the rise acts effectually in prevent-ing,` the nutfrom turuiniu the reverse direction, when jarred by a prssing train.

.It is obvious that the risc of the fish-plate may bc` arranged abovethe nut, and the beveled edge thereof below, with the same result.

\Ve are aware that a concave fish-plate has been used in connection witha nut 'having a convex under surface, designed to accomplish the resulteffected by our invention. In such a plate no allowance is made for thospring, tbc nnt rising equally at the opposite corners.

In our invention, the ordinary flat-bottomed nuts can be used. I

XVhat we claim as our invention, and desire to secure by ,LettersPatent, is-' The fish-plate hereindescribed, having the raised portionor. ledge s, and the beveled edge n, on opposides of the bolt-holes, asand for the purposes specied.

In testimony that we claim the above, wc have hereunto subscribed -onrnames in the presence of two witnesses.

JOHN MINER.

SILAS MERRICK.

Witnesses Crus. Heeres, 1t. E. Hoorns.

